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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-13 13:33:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-13 13:33:26 -0800
commite3aa91a7cb21a595169b20c64f63ca39a91a0c43 (patch)
tree6a92a2e595629949a45336c770c2408abba8444d /drivers
parent78a45c6f067824cf5d0a9fedea7339ac2e28603c (diff)
parent8606813a6c8997fd3bb805186056d78670eb86ca (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu: - The crypto API is now documented :) - Disallow arbitrary module loading through crypto API. - Allow get request with empty driver name through crypto_user. - Allow speed testing of arbitrary hash functions. - Add caam support for ctr(aes), gcm(aes) and their derivatives. - nx now supports concurrent hashing properly. - Add sahara support for SHA1/256. - Add ARM64 version of CRC32. - Misc fixes. * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits) crypto: tcrypt - Allow speed testing of arbitrary hash functions crypto: af_alg - add user space interface for AEAD crypto: qat - fix problem with coalescing enable logic crypto: sahara - add support for SHA1/256 crypto: sahara - replace tasklets with kthread crypto: sahara - add support for i.MX53 crypto: sahara - fix spinlock initialization crypto: arm - replace memset by memzero_explicit crypto: powerpc - replace memset by memzero_explicit crypto: sha - replace memset by memzero_explicit crypto: sparc - replace memset by memzero_explicit crypto: algif_skcipher - initialize upon init request crypto: algif_skcipher - removed unneeded code crypto: algif_skcipher - Fixed blocking recvmsg crypto: drbg - use memzero_explicit() for clearing sensitive data crypto: drbg - use MODULE_ALIAS_CRYPTO crypto: include crypto- module prefix in template crypto: user - add MODULE_ALIAS crypto: sha-mb - remove a bogus NULL check crytpo: qat - Fix 64 bytes requests ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/char/hw_random/Kconfig2
-rw-r--r--drivers/char/hw_random/atmel-rng.c15
-rw-r--r--drivers/char/hw_random/core.c12
-rw-r--r--drivers/crypto/bfin_crc.c2
-rw-r--r--drivers/crypto/caam/caamalg.c1904
-rw-r--r--drivers/crypto/caam/compat.h1
-rw-r--r--drivers/crypto/caam/desc_constr.h2
-rw-r--r--drivers/crypto/caam/error.c25
-rw-r--r--drivers/crypto/caam/jr.c3
-rw-r--r--drivers/crypto/nx/nx-aes-cbc.c12
-rw-r--r--drivers/crypto/nx/nx-aes-ccm.c61
-rw-r--r--drivers/crypto/nx/nx-aes-ctr.c13
-rw-r--r--drivers/crypto/nx/nx-aes-ecb.c12
-rw-r--r--drivers/crypto/nx/nx-aes-gcm.c66
-rw-r--r--drivers/crypto/nx/nx-aes-xcbc.c81
-rw-r--r--drivers/crypto/nx/nx-sha256.c208
-rw-r--r--drivers/crypto/nx/nx-sha512.c222
-rw-r--r--drivers/crypto/nx/nx.c127
-rw-r--r--drivers/crypto/nx/nx.h8
-rw-r--r--drivers/crypto/padlock-aes.c2
-rw-r--r--drivers/crypto/padlock-sha.c8
-rw-r--r--drivers/crypto/qat/qat_common/adf_accel_devices.h2
-rw-r--r--drivers/crypto/qat/qat_common/adf_aer.c2
-rw-r--r--drivers/crypto/qat/qat_common/adf_ctl_drv.c3
-rw-r--r--drivers/crypto/qat/qat_common/adf_dev_mgr.c6
-rw-r--r--drivers/crypto/qat/qat_common/adf_transport.c15
-rw-r--r--drivers/crypto/qat/qat_common/adf_transport_access_macros.h9
-rw-r--r--drivers/crypto/qat/qat_common/qat_algs.c37
-rw-r--r--drivers/crypto/qat/qat_common/qat_hal.c3
-rw-r--r--drivers/crypto/qat/qat_dh895xcc/adf_dh895xcc_hw_data.h2
-rw-r--r--drivers/crypto/qat/qat_dh895xcc/adf_isr.c12
-rw-r--r--drivers/crypto/sahara.c794
-rw-r--r--drivers/crypto/ux500/cryp/cryp_core.c6
-rw-r--r--drivers/crypto/ux500/hash/hash_core.c10
-rw-r--r--drivers/s390/crypto/ap_bus.c3
35 files changed, 3092 insertions, 598 deletions
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 91a04ae8003c..de57b38809c7 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -64,7 +64,7 @@ config HW_RANDOM_AMD
config HW_RANDOM_ATMEL
tristate "Atmel Random Number Generator support"
- depends on ARCH_AT91 && HAVE_CLK
+ depends on ARCH_AT91 && HAVE_CLK && OF
default HW_RANDOM
---help---
This driver provides kernel-side support for the Random Number
diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c
index 851bc7e20ad2..0bb0b2120a63 100644
--- a/drivers/char/hw_random/atmel-rng.c
+++ b/drivers/char/hw_random/atmel-rng.c
@@ -67,7 +67,7 @@ static int atmel_trng_probe(struct platform_device *pdev)
if (IS_ERR(trng->clk))
return PTR_ERR(trng->clk);
- ret = clk_enable(trng->clk);
+ ret = clk_prepare_enable(trng->clk);
if (ret)
return ret;
@@ -95,7 +95,7 @@ static int atmel_trng_remove(struct platform_device *pdev)
hwrng_unregister(&trng->rng);
writel(TRNG_KEY, trng->base + TRNG_CR);
- clk_disable(trng->clk);
+ clk_disable_unprepare(trng->clk);
return 0;
}
@@ -105,7 +105,7 @@ static int atmel_trng_suspend(struct device *dev)
{
struct atmel_trng *trng = dev_get_drvdata(dev);
- clk_disable(trng->clk);
+ clk_disable_unprepare(trng->clk);
return 0;
}
@@ -114,7 +114,7 @@ static int atmel_trng_resume(struct device *dev)
{
struct atmel_trng *trng = dev_get_drvdata(dev);
- return clk_enable(trng->clk);
+ return clk_prepare_enable(trng->clk);
}
static const struct dev_pm_ops atmel_trng_pm_ops = {
@@ -123,6 +123,12 @@ static const struct dev_pm_ops atmel_trng_pm_ops = {
};
#endif /* CONFIG_PM */
+static const struct of_device_id atmel_trng_dt_ids[] = {
+ { .compatible = "atmel,at91sam9g45-trng" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, atmel_trng_dt_ids);
+
static struct platform_driver atmel_trng_driver = {
.probe = atmel_trng_probe,
.remove = atmel_trng_remove,
@@ -132,6 +138,7 @@ static struct platform_driver atmel_trng_driver = {
#ifdef CONFIG_PM
.pm = &atmel_trng_pm_ops,
#endif /* CONFIG_PM */
+ .of_match_table = atmel_trng_dt_ids,
},
};
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index aa30a25c8d49..1500cfd799a7 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -281,7 +281,6 @@ static ssize_t hwrng_attr_available_show(struct device *dev,
char *buf)
{
int err;
- ssize_t ret = 0;
struct hwrng *rng;
err = mutex_lock_interruptible(&rng_mutex);
@@ -289,16 +288,13 @@ static ssize_t hwrng_attr_available_show(struct device *dev,
return -ERESTARTSYS;
buf[0] = '\0';
list_for_each_entry(rng, &rng_list, list) {
- strncat(buf, rng->name, PAGE_SIZE - ret - 1);
- ret += strlen(rng->name);
- strncat(buf, " ", PAGE_SIZE - ret - 1);
- ret++;
+ strlcat(buf, rng->name, PAGE_SIZE);
+ strlcat(buf, " ", PAGE_SIZE);
}
- strncat(buf, "\n", PAGE_SIZE - ret - 1);
- ret++;
+ strlcat(buf, "\n", PAGE_SIZE);
mutex_unlock(&rng_mutex);
- return ret;
+ return strlen(buf);
}
static DEVICE_ATTR(rng_current, S_IRUGO | S_IWUSR,
diff --git a/drivers/crypto/bfin_crc.c b/drivers/crypto/bfin_crc.c
index b099e33cb073..e96eddc0e0b3 100644
--- a/drivers/crypto/bfin_crc.c
+++ b/drivers/crypto/bfin_crc.c
@@ -21,13 +21,13 @@
#include <linux/scatterlist.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
-#include <linux/unaligned/access_ok.h>
#include <linux/crypto.h>
#include <linux/cryptohash.h>
#include <crypto/scatterwalk.h>
#include <crypto/algapi.h>
#include <crypto/hash.h>
#include <crypto/internal/hash.h>
+#include <asm/unaligned.h>
#include <asm/dma.h>
#include <asm/portmux.h>
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index a80ea853701d..3187400daf31 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -60,6 +60,7 @@
#define CAAM_CRA_PRIORITY 3000
/* max key is sum of AES_MAX_KEY_SIZE, max split key size */
#define CAAM_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + \
+ CTR_RFC3686_NONCE_SIZE + \
SHA512_DIGEST_SIZE * 2)
/* max IV is max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
#define CAAM_MAX_IV_LENGTH 16
@@ -70,17 +71,34 @@
#define DESC_AEAD_DEC_LEN (DESC_AEAD_BASE + 18 * CAAM_CMD_SZ)
#define DESC_AEAD_GIVENC_LEN (DESC_AEAD_ENC_LEN + 7 * CAAM_CMD_SZ)
+/* Note: Nonce is counted in enckeylen */
+#define DESC_AEAD_CTR_RFC3686_LEN (6 * CAAM_CMD_SZ)
+
#define DESC_AEAD_NULL_BASE (3 * CAAM_CMD_SZ)
#define DESC_AEAD_NULL_ENC_LEN (DESC_AEAD_NULL_BASE + 14 * CAAM_CMD_SZ)
#define DESC_AEAD_NULL_DEC_LEN (DESC_AEAD_NULL_BASE + 17 * CAAM_CMD_SZ)
+#define DESC_GCM_BASE (3 * CAAM_CMD_SZ)
+#define DESC_GCM_ENC_LEN (DESC_GCM_BASE + 23 * CAAM_CMD_SZ)
+#define DESC_GCM_DEC_LEN (DESC_GCM_BASE + 19 * CAAM_CMD_SZ)
+
+#define DESC_RFC4106_BASE (3 * CAAM_CMD_SZ)
+#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 15 * CAAM_CMD_SZ)
+#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 14 * CAAM_CMD_SZ)
+#define DESC_RFC4106_GIVENC_LEN (DESC_RFC4106_BASE + 21 * CAAM_CMD_SZ)
+
+#define DESC_RFC4543_BASE (3 * CAAM_CMD_SZ)
+#define DESC_RFC4543_ENC_LEN (DESC_RFC4543_BASE + 25 * CAAM_CMD_SZ)
+#define DESC_RFC4543_DEC_LEN (DESC_RFC4543_BASE + 27 * CAAM_CMD_SZ)
+#define DESC_RFC4543_GIVENC_LEN (DESC_RFC4543_BASE + 30 * CAAM_CMD_SZ)
+
#define DESC_ABLKCIPHER_BASE (3 * CAAM_CMD_SZ)
#define DESC_ABLKCIPHER_ENC_LEN (DESC_ABLKCIPHER_BASE + \
20 * CAAM_CMD_SZ)
#define DESC_ABLKCIPHER_DEC_LEN (DESC_ABLKCIPHER_BASE + \
15 * CAAM_CMD_SZ)
-#define DESC_MAX_USED_BYTES (DESC_AEAD_GIVENC_LEN + \
+#define DESC_MAX_USED_BYTES (DESC_RFC4543_GIVENC_LEN + \
CAAM_MAX_KEY_SIZE)
#define DESC_MAX_USED_LEN (DESC_MAX_USED_BYTES / CAAM_CMD_SZ)
@@ -128,11 +146,13 @@ static inline void aead_append_src_dst(u32 *desc, u32 msg_type)
/*
* For aead encrypt and decrypt, read iv for both classes
*/
-static inline void aead_append_ld_iv(u32 *desc, int ivsize)
+static inline void aead_append_ld_iv(u32 *desc, int ivsize, int ivoffset)
{
- append_cmd(desc, CMD_SEQ_LOAD | LDST_SRCDST_BYTE_CONTEXT |
- LDST_CLASS_1_CCB | ivsize);
- append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO | ivsize);
+ append_seq_load(desc, ivsize, LDST_CLASS_1_CCB |
+ LDST_SRCDST_BYTE_CONTEXT |
+ (ivoffset << LDST_OFFSET_SHIFT));
+ append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_CLASS2INFIFO |
+ (ivoffset << MOVE_OFFSET_SHIFT) | ivsize);
}
/*
@@ -178,35 +198,60 @@ struct caam_ctx {
};
static void append_key_aead(u32 *desc, struct caam_ctx *ctx,
- int keys_fit_inline)
+ int keys_fit_inline, bool is_rfc3686)
{
+ u32 *nonce;
+ unsigned int enckeylen = ctx->enckeylen;
+
+ /*
+ * RFC3686 specific:
+ * | ctx->key = {AUTH_KEY, ENC_KEY, NONCE}
+ * | enckeylen = encryption key size + nonce size
+ */
+ if (is_rfc3686)
+ enckeylen -= CTR_RFC3686_NONCE_SIZE;
+
if (keys_fit_inline) {
append_key_as_imm(desc, ctx->key, ctx->split_key_pad_len,
ctx->split_key_len, CLASS_2 |
KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key_as_imm(desc, (void *)ctx->key +
- ctx->split_key_pad_len, ctx->enckeylen,
- ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ ctx->split_key_pad_len, enckeylen,
+ enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
} else {
append_key(desc, ctx->key_dma, ctx->split_key_len, CLASS_2 |
KEY_DEST_MDHA_SPLIT | KEY_ENC);
append_key(desc, ctx->key_dma + ctx->split_key_pad_len,
- ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ }
+
+ /* Load Counter into CONTEXT1 reg */
+ if (is_rfc3686) {
+ nonce = (u32 *)((void *)ctx->key + ctx->split_key_pad_len +
+ enckeylen);
+ append_load_imm_u32(desc, *nonce, LDST_CLASS_IND_CCB |
+ LDST_SRCDST_BYTE_OUTFIFO | LDST_IMM);
+ append_move(desc,
+ MOVE_SRC_OUTFIFO |
+ MOVE_DEST_CLASS1CTX |
+ (16 << MOVE_OFFSET_SHIFT) |
+ (CTR_RFC3686_NONCE_SIZE << MOVE_LEN_SHIFT));
}
}
static void init_sh_desc_key_aead(u32 *desc, struct caam_ctx *ctx,
- int keys_fit_inline)
+ int keys_fit_inline, bool is_rfc3686)
{
u32 *key_jump_cmd;
- init_sh_desc(desc, HDR_SHARE_SERIAL);
+ /* Note: Context registers are saved. */
+ init_sh_desc(desc, HDR_SHARE_SERIAL | HDR_SAVECTX);
/* Skip if already shared */
key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
JUMP_COND_SHRD);
- append_key_aead(desc, ctx, keys_fit_inline);
+ append_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
set_jump_tgt_here(desc, key_jump_cmd);
}
@@ -406,10 +451,17 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
{
struct aead_tfm *tfm = &aead->base.crt_aead;
struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct crypto_tfm *ctfm = crypto_aead_tfm(aead);
+ const char *alg_name = crypto_tfm_alg_name(ctfm);
struct device *jrdev = ctx->jrdev;
- bool keys_fit_inline = false;
+ bool keys_fit_inline;
u32 geniv, moveiv;
+ u32 ctx1_iv_off = 0;
u32 *desc;
+ const bool ctr_mode = ((ctx->class1_alg_type & OP_ALG_AAI_MASK) ==
+ OP_ALG_AAI_CTR_MOD128);
+ const bool is_rfc3686 = (ctr_mode &&
+ (strstr(alg_name, "rfc3686") != NULL));
if (!ctx->authsize)
return 0;
@@ -419,18 +471,36 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
return aead_null_set_sh_desc(aead);
/*
+ * AES-CTR needs to load IV in CONTEXT1 reg
+ * at an offset of 128bits (16bytes)
+ * CONTEXT1[255:128] = IV
+ */
+ if (ctr_mode)
+ ctx1_iv_off = 16;
+
+ /*
+ * RFC3686 specific:
+ * CONTEXT1[255:128] = {NONCE, IV, COUNTER}
+ */
+ if (is_rfc3686)
+ ctx1_iv_off = 16 + CTR_RFC3686_NONCE_SIZE;
+
+ /*
* Job Descriptor and Shared Descriptors
* must all fit into the 64-word Descriptor h/w Buffer
*/
+ keys_fit_inline = false;
if (DESC_AEAD_ENC_LEN + DESC_JOB_IO_LEN +
- ctx->split_key_pad_len + ctx->enckeylen <=
+ ctx->split_key_pad_len + ctx->enckeylen +
+ (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0) <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = true;
/* aead_encrypt shared descriptor */
desc = ctx->sh_desc_enc;
- init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
+ /* Note: Context registers are saved. */
+ init_sh_desc_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
/* Class 2 operation */
append_operation(desc, ctx->class2_alg_type |
@@ -448,7 +518,15 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
/* read assoc before reading payload */
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
- aead_append_ld_iv(desc, tfm->ivsize);
+ aead_append_ld_iv(desc, tfm->ivsize, ctx1_iv_off);
+
+ /* Load Counter into CONTEXT1 reg */
+ if (is_rfc3686)
+ append_load_imm_u32(desc, be32_to_cpu(1), LDST_IMM |
+ LDST_CLASS_1_CCB |
+ LDST_SRCDST_BYTE_CONTEXT |
+ ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+ LDST_OFFSET_SHIFT));
/* Class 1 operation */
append_operation(desc, ctx->class1_alg_type |
@@ -482,14 +560,16 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
*/
keys_fit_inline = false;
if (DESC_AEAD_DEC_LEN + DESC_JOB_IO_LEN +
- ctx->split_key_pad_len + ctx->enckeylen <=
+ ctx->split_key_pad_len + ctx->enckeylen +
+ (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0) <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = true;
/* aead_decrypt shared descriptor */
desc = ctx->sh_desc_dec;
- init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
+ /* Note: Context registers are saved. */
+ init_sh_desc_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
/* Class 2 operation */
append_operation(desc, ctx->class2_alg_type |
@@ -506,9 +586,22 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
- aead_append_ld_iv(desc, tfm->ivsize);
+ aead_append_ld_iv(desc, tfm->ivsize, ctx1_iv_off);
- append_dec_op1(desc, ctx->class1_alg_type);
+ /* Load Counter into CONTEXT1 reg */
+ if (is_rfc3686)
+ append_load_imm_u32(desc, be32_to_cpu(1), LDST_IMM |
+ LDST_CLASS_1_CCB |
+ LDST_SRCDST_BYTE_CONTEXT |
+ ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+ LDST_OFFSET_SHIFT));
+
+ /* Choose operation */
+ if (ctr_mode)
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_DECRYPT);
+ else
+ append_dec_op1(desc, ctx->class1_alg_type);
/* Read and write cryptlen bytes */
append_math_add(desc, VARSEQINLEN, ZERO, REG2, CAAM_CMD_SZ);
@@ -538,14 +631,16 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
*/
keys_fit_inline = false;
if (DESC_AEAD_GIVENC_LEN + DESC_JOB_IO_LEN +
- ctx->split_key_pad_len + ctx->enckeylen <=
+ ctx->split_key_pad_len + ctx->enckeylen +
+ (is_rfc3686 ? DESC_AEAD_CTR_RFC3686_LEN : 0) <=
CAAM_DESC_BYTES_MAX)
keys_fit_inline = true;
/* aead_givencrypt shared descriptor */
desc = ctx->sh_desc_givenc;
- init_sh_desc_key_aead(desc, ctx, keys_fit_inline);
+ /* Note: Context registers are saved. */
+ init_sh_desc_key_aead(desc, ctx, keys_fit_inline, is_rfc3686);
/* Generate IV */
geniv = NFIFOENTRY_STYPE_PAD | NFIFOENTRY_DEST_DECO |
@@ -554,13 +649,16 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
append_load_imm_u32(desc, geniv, LDST_CLASS_IND_CCB |
LDST_SRCDST_WORD_INFO_FIFO | LDST_IMM);
append_cmd(desc, CMD_LOAD | DISABLE_AUTO_INFO_FIFO);
- append_move(desc, MOVE_SRC_INFIFO |
- MOVE_DEST_CLASS1CTX | (tfm->ivsize << MOVE_LEN_SHIFT));
+ append_move(desc, MOVE_WAITCOMP |
+ MOVE_SRC_INFIFO | MOVE_DEST_CLASS1CTX |
+ (ctx1_iv_off << MOVE_OFFSET_SHIFT) |
+ (tfm->ivsize << MOVE_LEN_SHIFT));
append_cmd(desc, CMD_LOAD | ENABLE_AUTO_INFO_FIFO);
/* Copy IV to class 1 context */
- append_move(desc, MOVE_SRC_CLASS1CTX |
- MOVE_DEST_OUTFIFO | (tfm->ivsize << MOVE_LEN_SHIFT));
+ append_move(desc, MOVE_SRC_CLASS1CTX | MOVE_DEST_OUTFIFO |
+ (ctx1_iv_off << MOVE_OFFSET_SHIFT) |
+ (tfm->ivsize << MOVE_LEN_SHIFT));
/* Return to encryption */
append_operation(desc, ctx->class2_alg_type |
@@ -576,7 +674,7 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS2 | FIFOLD_TYPE_MSG |
KEY_VLF);
- /* Copy iv from class 1 ctx to class 2 fifo*/
+ /* Copy iv from outfifo to class 2 fifo */
moveiv = NFIFOENTRY_STYPE_OFIFO | NFIFOENTRY_DEST_CLASS2 |
NFIFOENTRY_DTYPE_MSG | (tfm->ivsize << NFIFOENTRY_DLEN_SHIFT);
append_load_imm_u32(desc, moveiv, LDST_CLASS_IND_CCB |
@@ -584,6 +682,14 @@ static int aead_set_sh_desc(struct crypto_aead *aead)
append_load_imm_u32(desc, tfm->ivsize, LDST_CLASS_2_CCB |
LDST_SRCDST_WORD_DATASZ_REG | LDST_IMM);
+ /* Load Counter into CONTEXT1 reg */
+ if (is_rfc3686)
+ append_load_imm_u32(desc, be32_to_cpu(1), LDST_IMM |
+ LDST_CLASS_1_CCB |
+ LDST_SRCDST_BYTE_CONTEXT |
+ ((ctx1_iv_off + CTR_RFC3686_IV_SIZE) <<
+ LDST_OFFSET_SHIFT));
+
/* Class 1 operation */
append_operation(desc, ctx->class1_alg_type |
OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
@@ -630,6 +736,912 @@ static int aead_setauthsize(struct crypto_aead *authenc,
return 0;
}
+static int gcm_set_sh_desc(struct crypto_aead *aead)
+{
+ struct aead_tfm *tfm = &aead->base.crt_aead;
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ bool keys_fit_inline = false;
+ u32 *key_jump_cmd, *zero_payload_jump_cmd,
+ *zero_assoc_jump_cmd1, *zero_assoc_jump_cmd2;
+ u32 *desc;
+
+ if (!ctx->enckeylen || !ctx->authsize)
+ return 0;
+
+ /*
+ * AES GCM encrypt shared descriptor
+ * Job Descriptor and Shared Descriptor
+ * must fit into the 64-word Descriptor h/w Buffer
+ */
+ if (DESC_GCM_ENC_LEN + DESC_JOB_IO_LEN +
+ ctx->enckeylen <= CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = true;
+
+ desc = ctx->sh_desc_enc;
+
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+ /* skip key loading if they are loaded due to sharing */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD | JUMP_COND_SELF);
+ if (keys_fit_inline)
+ append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ else
+ append_key(desc, ctx->key_dma, ctx->enckeylen,
+ CLASS_1 | KEY_DEST_CLASS_REG);
+ set_jump_tgt_here(desc, key_jump_cmd);
+
+ /* class 1 operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* cryptlen = seqoutlen - authsize */
+ append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+
+ /* assoclen + cryptlen = seqinlen - ivsize */
+ append_math_sub_imm_u32(desc, REG2, SEQINLEN, IMM, tfm->ivsize);
+
+ /* assoclen = (assoclen + cryptlen) - cryptlen */
+ append_math_sub(desc, REG1, REG2, REG3, CAAM_CMD_SZ);
+
+ /* if cryptlen is ZERO jump to zero-payload commands */
+ append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+ zero_payload_jump_cmd = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+ /* read IV */
+ append_seq_fifo_load(desc, tfm->ivsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+
+ /* if assoclen is ZERO, skip reading the assoc data */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG1, CAAM_CMD_SZ);
+ zero_assoc_jump_cmd1 = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+
+ /* read assoc data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+ set_jump_tgt_here(desc, zero_assoc_jump_cmd1);
+
+ append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+ /* write encrypted data */
+ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+ /* read payload data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_MSG | FIFOLD_TYPE_LAST1);
+
+ /* jump the zero-payload commands */
+ append_jump(desc, JUMP_TEST_ALL | 7);
+
+ /* zero-payload commands */
+ set_jump_tgt_here(desc, zero_payload_jump_cmd);
+
+ /* if assoclen is ZERO, jump to IV reading - is the only input data */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG1, CAAM_CMD_SZ);
+ zero_assoc_jump_cmd2 = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+ /* read IV */
+ append_seq_fifo_load(desc, tfm->ivsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+
+ /* read assoc data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_AAD | FIFOLD_TYPE_LAST1);
+
+ /* jump to ICV writing */
+ append_jump(desc, JUMP_TEST_ALL | 2);
+
+ /* read IV - is the only input data */
+ set_jump_tgt_here(desc, zero_assoc_jump_cmd2);
+ append_seq_fifo_load(desc, tfm->ivsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 |
+ FIFOLD_TYPE_LAST1);
+
+ /* write ICV */
+ append_seq_store(desc, ctx->authsize, LDST_CLASS_1_CCB |
+ LDST_SRCDST_BYTE_CONTEXT);
+
+ ctx->sh_desc_enc_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_enc_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "gcm enc shdesc@"__stringify(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ /*
+ * Job Descriptor and Shared Descriptors
+ * must all fit into the 64-word Descriptor h/w Buffer
+ */
+ keys_fit_inline = false;
+ if (DESC_GCM_DEC_LEN + DESC_JOB_IO_LEN +
+ ctx->enckeylen <= CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = true;
+
+ desc = ctx->sh_desc_dec;
+
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+ /* skip key loading if they are loaded due to sharing */
+ key_jump_cmd = append_jump(desc, JUMP_JSL |
+ JUMP_TEST_ALL | JUMP_COND_SHRD |
+ JUMP_COND_SELF);
+ if (keys_fit_inline)
+ append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ else
+ append_key(desc, ctx->key_dma, ctx->enckeylen,
+ CLASS_1 | KEY_DEST_CLASS_REG);
+ set_jump_tgt_here(desc, key_jump_cmd);
+
+ /* class 1 operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_DECRYPT | OP_ALG_ICV_ON);
+
+ /* assoclen + cryptlen = seqinlen - ivsize - icvsize */
+ append_math_sub_imm_u32(desc, REG3, SEQINLEN, IMM,
+ ctx->authsize + tfm->ivsize);
+
+ /* assoclen = (assoclen + cryptlen) - cryptlen */
+ append_math_sub(desc, REG2, SEQOUTLEN, REG0, CAAM_CMD_SZ);
+ append_math_sub(desc, REG1, REG3, REG2, CAAM_CMD_SZ);
+
+ /* read IV */
+ append_seq_fifo_load(desc, tfm->ivsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+
+ /* jump to zero-payload command if cryptlen is zero */
+ append_math_add(desc, VARSEQOUTLEN, ZERO, REG2, CAAM_CMD_SZ);
+ zero_payload_jump_cmd = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+
+ append_math_add(desc, VARSEQINLEN, ZERO, REG1, CAAM_CMD_SZ);
+ /* if asoclen is ZERO, skip reading assoc data */
+ zero_assoc_jump_cmd1 = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+ /* read assoc data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+ set_jump_tgt_here(desc, zero_assoc_jump_cmd1);
+
+ append_math_add(desc, VARSEQINLEN, ZERO, REG2, CAAM_CMD_SZ);
+
+ /* store encrypted data */
+ append_seq_fifo_store(desc, 0, FIFOST_TYPE_MESSAGE_DATA | FIFOLDST_VLF);
+
+ /* read payload data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_MSG | FIFOLD_TYPE_FLUSH1);
+
+ /* jump the zero-payload commands */
+ append_jump(desc, JUMP_TEST_ALL | 4);
+
+ /* zero-payload command */
+ set_jump_tgt_here(desc, zero_payload_jump_cmd);
+
+ /* if assoclen is ZERO, jump to ICV reading */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG1, CAAM_CMD_SZ);
+ zero_assoc_jump_cmd2 = append_jump(desc, JUMP_TEST_ALL |
+ JUMP_COND_MATH_Z);
+ /* read assoc data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+ set_jump_tgt_here(desc, zero_assoc_jump_cmd2);
+
+ /* read ICV */
+ append_seq_fifo_load(desc, ctx->authsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_ICV | FIFOLD_TYPE_LAST1);
+
+ ctx->sh_desc_dec_dma = dma_map_single(jrdev, desc,
+ desc_bytes(desc),
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(jrdev, ctx->sh_desc_dec_dma)) {
+ dev_err(jrdev, "unable to map shared descriptor\n");
+ return -ENOMEM;
+ }
+#ifdef DEBUG
+ print_hex_dump(KERN_ERR, "gcm dec shdesc@"__stringify(__LINE__)": ",
+ DUMP_PREFIX_ADDRESS, 16, 4, desc,
+ desc_bytes(desc), 1);
+#endif
+
+ return 0;
+}
+
+static int gcm_setauthsize(struct crypto_aead *authenc, unsigned int authsize)
+{
+ struct caam_ctx *ctx = crypto_aead_ctx(authenc);
+
+ ctx->authsize = authsize;
+ gcm_set_sh_desc(authenc);
+
+ return 0;
+}
+
+static int rfc4106_set_sh_desc(struct crypto_aead *aead)
+{
+ struct aead_tfm *tfm = &aead->base.crt_aead;
+ struct caam_ctx *ctx = crypto_aead_ctx(aead);
+ struct device *jrdev = ctx->jrdev;
+ bool keys_fit_inline = false;
+ u32 *key_jump_cmd, *move_cmd, *write_iv_cmd;
+ u32 *desc;
+ u32 geniv;
+
+ if (!ctx->enckeylen || !ctx->authsize)
+ return 0;
+
+ /*
+ * RFC4106 encrypt shared descriptor
+ * Job Descriptor and Shared Descriptor
+ * must fit into the 64-word Descriptor h/w Buffer
+ */
+ if (DESC_RFC4106_ENC_LEN + DESC_JOB_IO_LEN +
+ ctx->enckeylen <= CAAM_DESC_BYTES_MAX)
+ keys_fit_inline = true;
+
+ desc = ctx->sh_desc_enc;
+
+ init_sh_desc(desc, HDR_SHARE_SERIAL);
+
+ /* Skip key loading if it is loaded due to sharing */
+ key_jump_cmd = append_jump(desc, JUMP_JSL | JUMP_TEST_ALL |
+ JUMP_COND_SHRD);
+ if (keys_fit_inline)
+ append_key_as_imm(desc, (void *)ctx->key, ctx->enckeylen,
+ ctx->enckeylen, CLASS_1 | KEY_DEST_CLASS_REG);
+ else
+ append_key(desc, ctx->key_dma, ctx->enckeylen,
+ CLASS_1 | KEY_DEST_CLASS_REG);
+ set_jump_tgt_here(desc, key_jump_cmd);
+
+ /* Class 1 operation */
+ append_operation(desc, ctx->class1_alg_type |
+ OP_ALG_AS_INITFINAL | OP_ALG_ENCRYPT);
+
+ /* cryptlen = seqoutlen - authsize */
+ append_math_sub_imm_u32(desc, REG3, SEQOUTLEN, IMM, ctx->authsize);
+ append_math_add(desc, VARSEQOUTLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+ /* assoclen + cryptlen = seqinlen - ivsize */
+ append_math_sub_imm_u32(desc, REG2, SEQINLEN, IMM, tfm->ivsize);
+
+ /* assoclen = (assoclen + cryptlen) - cryptlen */
+ append_math_sub(desc, VARSEQINLEN, REG2, REG3, CAAM_CMD_SZ);
+
+ /* Read Salt */
+ append_fifo_load_as_imm(desc, (void *)(ctx->key + ctx->enckeylen),
+ 4, FIFOLD_CLASS_CLASS1 | FIFOLD_TYPE_IV);
+ /* Read AES-GCM-ESP IV */
+ append_seq_fifo_load(desc, tfm->ivsize, FIFOLD_CLASS_CLASS1 |
+ FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1);
+
+ /* Read assoc data */
+ append_seq_fifo_load(desc, 0, FIFOLD_CLASS_CLASS1 | FIFOLDST_VLF |
+ FIFOLD_TYPE_AAD | FIFOLD_TYPE_FLUSH1);
+
+ /* Will read cryptlen bytes */
+ append_math_add(desc, VARSEQINLEN, ZERO, REG3, CAAM_CMD_SZ);
+
+ /* Write encrypted data */
+ append_seq_f